I am having trouble understanding how one is supposed to utilize
multiple mapper extensions at the same time that override before_update,
etc. In the source, I see the `_ExtensionCarrier` class has a method
called `_do()`:
def _do(self, funcname, *args, **kwargs):
for elem in self.__elements:
ret = getattr(elem, funcname)(*args, **kwargs)
if ret is not EXT_PASS:
return ret
else:
return EXT_PASS
It appears that the first MapperExtension to return something other than
EXT_PASS will prevent any subsequent MapperExtensions from being called.
How am I supposed to implement two MapperExtensions that each have some
behavior to perform, say, `before_update`, and have them both be called?
Thanks.
--
Jonathan LaCour
http://cleverdevil.org
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